Single-player games like Ratopia
Below are 17 single-player Steam games similar to Ratopia, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Ratopia page.
Ranked picks
- 1

RimWorld
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Indie with Ratopia.
A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.
- 2

Dwarf Fortress
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Indie with Ratopia.
Build a fortress and try to help your dwarves survive against a deeply generated world. Keep your dwarves happy, grow their community and beware of digging too deeply. The deepest, most intricate simulation of a world that's ever been created.
- 3

Against the Storm
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Simulation with Ratopia.
A dark fantasy city builder where you must rebuild civilization in the face of apocalyptic rains. As the Queen’s Viceroy, lead humans, beavers, lizards, foxes, and harpies to reclaim the wilderness and secure a future for civilization's last survivors.
- 4

Empires of the Undergrowth
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Simulation with Ratopia.
Command swarms of warriors at an unprecedented scale of warfare in this blend of RTS and base-building. Lead ant colonies against the many fearsome threats of the insect world, while building intricate nests, developing pheromone-based tactics, and evolving to meet growing dangers.
- 5

Norland
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Simulation with Ratopia.
Lead your noble family in this medieval colony sim, facing off against class conflict, religious struggle, and political treachery. Tend to your people’s needs, uncover the lost knowledge of a fallen empire, and engage in nefarious plots against your enemies.
- 6

Clanfolk
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Simulation with Ratopia.
Clanfolk is a colony sim set in the Scottish Highlands. Harness your environment to survive - fish, gather, hunt, and farm as you prepare for the winter. Build an inn, trade with other clans, have children and marry them off - live life and prosper across the generations.
- 7

Workers & Resources: Soviet Republic
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Simulation with Ratopia.
Build a soviet republic from an impoverished country into a rich industrial superpower in a city builder with intricate production chains and a fully simulated global economy. Manage the lives of your citizens from education to work and party loyalty to criminal activity.
- 8

Judgment: Apocalypse Survival Simulation
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Indie with Ratopia.
Build, scavenge, craft, and perform occult rituals to survive in a demon-infested, post-apocalyptic colony simulation. Will you survive Judgment day?
- 9

Oxygen Not Included
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Indie and Simulation with Ratopia.
Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive.
- 10

Terraria
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Indie and Adventure with Ratopia.
Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available!
- 11

Anno 1800
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Simulation with Ratopia.
Anno 1800™ – Lead the Industrial Revolution! Welcome to the dawn of the Industrial Age. The path you choose will define your world. Are you an innovator or an exploiter? A conqueror or a liberator? How the world remembers your name is up to you.
- 12

Timberborn
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Indie with Ratopia.
Humans are long gone. In a world struck by droughts and toxic waste, will your lumberpunk beavers do any better? A sandbox city-building game featuring ingenious animals, vertical architecture, water physics, and terraforming. Contains high amounts of wood.
- 13

Ratropolis
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Indie with Ratopia.
A fusion of roguelite, tower defense, city-building, and deck-building! We created a new kind of real time strategy game filled with addictive and fast-paced gameplay. Create your deck, defend your city, and build the largest Ratropolis in history!
- 14

Rune Factory 5
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Adventure and Simulation with Ratopia.
As the newest ranger of a peacekeeping organization known as SEED, protect your community by rounding up rowdy monsters and going on special missions. Cultivate your farm and friendships alike while unravelling rune-related mysteries!
- 15

Rune Factory: Guardians of Azuma
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Adventure with Ratopia.
Welcome to the eastern nation of Azuma! In this fresh take on Rune Factory, use your powers as an Earth Dancer to restore the land, its people, and even its gods. Along the way, battle corrupted monsters, rebuild seasonal farms and villages, and form bonds with the colorful locals.
- 16

Spelunky
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Indie with Ratopia.
Spelunky is a unique platformer with randomized levels that offer a challenging new experience each time you play. Journey deep underground and explore fantastic places filled with all manner of monsters, traps, and treasure.
- 17

Ratocalypse
Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Indie with Ratopia.
A strategy RPG where you design the AI of your characters! The prince of a fallen kingdom, ruined by a zombie plague, investigates the capital overrun with the undead in search of hope to resolve the crisis.